Trace number 2084208

Some explanations

A solver is run under the control of another program named runsolver. runsolver is in charge of imposing the CPU time limit and the memory limit to the solver. It also monitors some information about the process. The trace of the execution of a solver is divided into four (or five) parts:
  1. SOLVER DATA
    This is the output of the solver (stdout and stderr).
    Note that some very long lines in this section may be truncated by your web browser ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock time.

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. VERIFIER DATA
    The output of the solver is piped to a verifier program which will search a value line "v " and, if found, will check that the given interpretation satisfies all constraints.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. WATCHER DATA
    This is the informations gathered by the runsolver program. It first prints the different limits. There's a first limit on CPU time set to X seconds (see the parameters in the trace). After this time has ellapsed, runsolver sends a SIGTERM and 2 seconds later a SIGKILL to the solver. For safety, there's also another limit set to X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    Every ten seconds, the runsolver process fetches the content of /proc/loadavg, /proc/pid/stat and /proc/pid/statm (see man proc) and prints it as raw data. This is only recorded in case we need to investigate the behaviour of a solver. The memory used by the solver (vsize) is also given every ten seconds.
    When the solver exits, runsolver prints some informations such as status and time. CPU usage is the ratio CPU Time/Real Time.
  5. LAUNCHER DATA
    These informations are related to the script which will launch the solver. The most important informations are the command line given to the solver, the md5sum of the different files and the dump of the /proc/cpuinfo and /proc/meminfo which provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerCPU timeWall clock time
bpsolver 09SAT 0.229964 0.238559

General information on the benchmark

Namecsp/rlfapGraphs/
normalized-graph1.xml
MD5SUMa04080f413cb83f1ad6bfb4c8f4b619a
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.147977
Satisfiable
(Un)Satisfiability was proved
Number of variables200
Number of constraints1134
Maximum constraint arity2
Maximum domain size44
Number of constraints which are defined in extension0
Number of constraints which are defined in intension1134
Global constraints used (with number of constraints)

Solver Data 

0.00/0.02	c bpsolver version 6.29.2009
0.00/0.02	c converting(HOME/instance-2084208-1247378894)
0.10/0.19	c Converted in 75 ms
0.18/0.21	c solving(HOME/instance-2084208-1247378894,1800000)
0.18/0.21	c solving(HOME/instance-2084208-1247378894,1800000)
0.18/0.23	c (ffc_inout)
0.18/0.23	s SATISFIABLE
0.18/0.23	v 268 30 254 16 666 428 142 380 380 142 282 44 338 100 268 30 352 114 254 16 72 310 240 478 296 58 694 456 58 296 296 58 58 296 310 72 352 114 16 254 72 310 324 86 296 58 310 72 72 310 16 254 282 44 296 58 254 16 100 338 44 282 16 254 114 352 58 296 58 296 58 296 380 142 428 666 156 394 16 254 16 254 268 30 100 338 254 16 338 100 268 30 268 30 58 296 380 142 268 30 680 442 142 380 428 666 310 72 114 352 100 338 30 268 100 338 16 254 58 296 142 380 142 380 16 254 352 114 310 72 268 30 44 282 142 380 30 268 324 86 268 30 268 30 128 366 254 16 156 394 156 394 16 254 282 44 366 128 352 114 366 128 394 156 484 722 428 666 254 16 366 128 282 44 324 86 16 254 338 100 428 666 86 324 324 86 30 268 352 114 694 456 380 142 268 30 86 324 86 324 
0.18/0.23	
0.18/0.23	c Time=38 ms Backtracks=0
0.18/0.23

Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2084208-1247378894/watcher-2084208-1247378894 -o /tmp/evaluation-result-2084208-1247378894/solver-2084208-1247378894 -C 1800 -W 2000 -M 900 HOME/solver HOME/instance-2084208-1247378894 1800 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 2000 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 921600 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 972800 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 2.37 2.31 2.21 4/82 23518
/proc/meminfo: memFree=1898712/2055920 swapFree=4192812/4192956
[pid=23518] ppid=23516 vsize=5356 CPUtime=0
/proc/23518/stat : 23518 (sh) R 23516 23518 18254 0 -1 4194304 270 0 0 0 0 0 0 0 20 0 1 0 24953350 5484544 237 996147200 4194304 4889804 548682068864 18446744073709551615 236437695783 0 0 4096 0 0 0 0 17 1 0 0
/proc/23518/statm: 1339 237 196 169 0 50 0

[startup+0.11546 s]
/proc/loadavg: 2.37 2.31 2.21 4/82 23518
/proc/meminfo: memFree=1898712/2055920 swapFree=4192812/4192956
[pid=23518] ppid=23516 vsize=62208 CPUtime=0.1
/proc/23518/stat : 23518 (bprolog) R 23516 23518 18254 0 -1 4194304 1120 0 0 0 5 5 0 0 20 0 1 0 24953350 63700992 833 996147200 134512640 135105188 4294956096 18446744073709551615 4294960144 0 0 4096 2 0 0 0 17 1 0 0
/proc/23518/statm: 15552 833 176 144 0 15036 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 62208

[startup+0.202466 s]
/proc/loadavg: 2.37 2.31 2.21 4/82 23518
/proc/meminfo: memFree=1898712/2055920 swapFree=4192812/4192956
[pid=23518] ppid=23516 vsize=62204 CPUtime=0.18
/proc/23518/stat : 23518 (bprolog) R 23516 23518 18254 0 -1 4194304 1195 0 0 0 9 9 0 0 21 0 1 0 24953350 63696896 906 996147200 134512640 135105188 4294956096 18446744073709551615 134669652 0 0 4096 2 0 0 0 17 1 0 0
/proc/23518/statm: 15551 906 179 144 0 15035 0
Current children cumulated CPU time (s) 0.18
Current children cumulated vsize (KiB) 62204

Solver just ended. Dumping a history of the last processes samples

Child status: 0
Real time (s): 0.238559
CPU time (s): 0.229964
CPU user time (s): 0.13098
CPU system time (s): 0.098984
CPU usage (%): 96.3971
Max. virtual memory (cumulated for all children) (KiB): 62208

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.13098
system time used= 0.098984
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1576
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 2
involuntary context switches= 236

runsolver used 0.003999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node62 at 2009-07-12 08:08:14
IDJOB=2084208
IDBENCH=58055
IDSOLVER=770
FILE ID=node62/2084208-1247378894
PBS_JOBID= 9507071
Free space on /tmp= 66348 MiB

SOLVER NAME= bpsolver 09
BENCH NAME= CPAI08/csp/rlfapGraphs/normalized-graph1.xml
COMMAND LINE= HOME/solver BENCHNAMENOEXT TIMEOUT
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2084208-1247378894/watcher-2084208-1247378894 -o /tmp/evaluation-result-2084208-1247378894/solver-2084208-1247378894 -C 1800 -W 2000 -M 900  HOME/solver HOME/instance-2084208-1247378894 1800

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB
MAX NB THREAD= 0

MD5SUM BENCH= a04080f413cb83f1ad6bfb4c8f4b619a
RANDOM SEED=1040205848

node62.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.220
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.220
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1899320 kB
Buffers:          6532 kB
Cached:          65140 kB
SwapCached:          0 kB
Active:          75916 kB
Inactive:        28296 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1899320 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            3292 kB
Writeback:           0 kB
Mapped:          50452 kB
Slab:            37300 kB
Committed_AS:   220456 kB
PageTables:       2036 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66348 MiB
End job on node62 at 2009-07-12 08:08:15